The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Jun. 08, 2018
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Inventors:
Ryosuke Ohsawa, Okazaki, JP;
Akira Tsujiko, Miyoshi, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2010.01); C01B 33/18 (2006.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/5825 (2013.01); C01B 33/18 (2013.01); H01M 4/366 (2013.01); H01M 10/0525 (2013.01); C01P 2002/54 (2013.01); C01P 2006/40 (2013.01); H01M 2004/027 (2013.01);
Abstract
A negative electrode active material particle has a composition represented by the following formula (I): SiOD. . . (I). In the formula (I), x satisfies 0≤x≤1.5. D is a group 13 element or a group 15 element in a periodic table. In an outermost surface of the negative electrode active material particle, y satisfies 10≤y≤10. In a center of the negative electrode active material particle, y satisfies y≤10.